Honda XR600

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A 1993 Honda XR600R
A 1995 Road modified XR600R

The Honda XR600R was a very popular offroad motorcycle with an air-cooled single cylinder, four-stroke engine. The bike was manufactured by Honda from 1985 to 2000 and was part of the Honda XR series. The currently available road oriented XR650L model is similar to the XR600R with an engine of more displacement but lower compression and less horsepower. The XR600R was superseded by the XR650R with a 649cc liquid-cooled engine and an aluminum frame.

The engine displacement is 591 cc with four valves placed in a RFVC (Radial Four Valve Combustion) radial disposition with a single camshaft. It has a dry sump lubrication system. The engine has a compression of 9.0:1 with a bore/stroke of 97 × 80 mm. The engine is fed by a 39 mm piston-valve carburetor. The front suspension is managed by two conventional cartridge valve 43 mm forks with compression and rebound adjustability, and in the rear is a Prolink single shock with preload, compression and rebound adjustability. The bike has a five-speed transmission and a kickstarter. 1985 models weighed 121 kg with later models gaining 20 kg plus as materials cheapened with swing arms and wheel base growing. Catch phrase of Duralumin kick starter to highlight Hondas commitment to the first of the XR600 range featured heavily in initial advertising

General specifications for the Honda XR600R[edit]

Specifications for 1992 model and on, unless noted
Engine Type Single-cylinder, air-cooled, four-stroke, SOHC, 4 valves
Carburetion Keihin PD8-AF, Ø39 mm (85-87 featured dual 28mm carbs)
Displacement 591 cc
Bore × Stroke 97.0 mm × 80.0 mm (3.82 in × 3.15 in)
Fuel Capacity 10 L (2.6 US gallons), plus 2 L (0.5 gal) reserve
Oil Capacity 2.3 L (2.4 US quarts)
Wheelbase 1455 mm (57.3 in)
Overall length 2160 mm (85.0 in)
Overall width 900 mm (35.5 in.)
Overall height 1215 mm (47.8 in)
Seat Height 955 mm (31 to 37½ in) depending on year and model
Ground clearance 345 mm (13.6 in)
Tires Front: 21 in 80/100; Rear: 18 in 110/100 ('85-'87 had 17" rear wheels)
Brakes Front: 1 disc, dual-piston pin-slider caliper; Rear: Drum-linkage 85-91/1 disc, single-piston pin-slider caliper 92 up.

weight: 121 kg Dry (1985).

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